423444030 has 64 divisors (see below), whose sum is σ = 1080552960. Its totient is φ = 105961856.

The previous prime is 423444001. The next prime is 423444061. The reversal of 423444030 is 30444324.

It is a happy number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30781 + ... + 42359.

It is an arithmetic number, because the mean of its divisors is an integer number (16883640).

Almost surely, 2^423444030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423444030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540276480).

423444030 is an abundant number, since it is smaller than the sum of its proper divisors (657108930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423444030 is a wasteful number, since it uses less digits than its factorization.

423444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11665.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 423444030 is about 20577.7557085315. The cubic root of 423444030 is about 750.9286452383.

Adding to 423444030 its reverse (30444324), we get a palindrome (453888354).

The spelling of 423444030 in words is "four hundred twenty-three million, four hundred forty-four thousand, thirty".